Travel mug



FIG. 1 is a perspective view of a travel mug showing my new design;

FIG. 2 is a front view thereof;

FIG. 3 is a left side view thereof;

FIG. 4 is a top view thereof;

FIG. 5 is a right side view thereof;

FIG. 6 is a bottom view thereof; and,

FIG. 7 is a rear view thereof.

The broken lines in the drawings are for illustrative purposes only andform no part of the claimed design.

The ornamental design for travel mug, as shown and described.